What is CVE-2023-30777?

CVE-2023-30777 is a high-severity vulnerability in Wp Engine Advanced Custom Fields, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2023-05-10.

How severe is CVE-2023-30777?

High severity. CVSS v3 base score is 7.1 out of 10.

Is CVE-2023-30777 known to be exploited?

6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Wp Engine Advanced Custom Fields

CVE-2023-30777

Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in WP Engine Advanced Custom Fields Pro, WP Engine Advanced Custom Fields plugins <= 6.1.5 versions.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.864 (99.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L.

Affected products

Wp Engine Advanced Custom Fields — versions n/a
Wp Engine Advanced Custom Fields Pro — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

patchstack.com/database/vulnerability/advanced-custom-fields-pro/wordpress-adva… (vdb-entry)
patchstack.com/database/vulnerability/advanced-custom-fields/wordpress-advanced… (vdb-entry)
patchstack.com/articles/reflected-xss-in-advanced-custom-fields-plugins-affecti… (technical-description)

Frequently asked questions

What is CVE-2023-30777?: CVE-2023-30777 is a high-severity vulnerability in Wp Engine Advanced Custom Fields, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2023-05-10.
How severe is CVE-2023-30777?: High severity. CVSS v3 base score is 7.1 out of 10.
Is CVE-2023-30777 known to be exploited?: 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.